Jun Du, Ya Cheng, Xiaoxiao Zhang, Na Yang, Yanchen Qu. An Improved Method for Frequency-Shift Measurement Dynamic Range Based on Phase-Modulated Doppler Lidar[J]. Acta Optica Sinica, 2020, 40(6): 0628001
- Acta Optica Sinica
- Vol. 40, Issue 6, 0628001 (2020)
![Changing curve of An(ω) with the signal light frequency shift[13]](/richHtml/gxxb/2020/40/6/0628001/img_1.jpg)
Fig. 1. Changing curve of An(ω) with the signal light frequency shift[13]
Fig. 2. AR and AI frequency shift curves. (a) Three-dimensional curve; (b) two-dimensional curve
Fig. 3. “star map” curves of (ARL,AIL) and (AR,AI)
Fig. 4. Measurement sensitivity curve
Fig. 5. Experimental research device schematic
Fig. 6. Measured mean values and standard deviations of ARL and AIL. (a) Measurement mean values; (b) measurement standard deviations
Fig. 7. Measured mean values and standard deviations of ?0 and An(|An|). (a) Measured means of ?0; (b) measured means of An(|An|); (c) measured standard deviations of An
Fig. 8. Frequency shift measurement sensitivity and error of An and AS. (a) Frequency shift measurement sensitivity; (b) frequency shift measurement error
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